Investors will get a glimpse at how the travel industry is fairing with Delta Air Lines (DAL)  set to report its Q2 results on Thursday, July 11.Entering the busy summer travel season reports from other prominent domestic carriers such as American Airlines (AAL)  and United Airlines (UAL)  will roll in later in the month. That said, let’s see if it’s time to buy Delta’s stock and take a look at how it compares to its peers. Q2 Expectations for Delta AirlinesFollowing a very tough to-compete-against prior-ye ...